Subject Re: [firebird-support] aggregate udf
Author Alexandre Benson Smith
msarossy wrote:
> I would like to connect to a FB2.1 database and run an aggregate query
> which returns mean and standard deviation. Is it possible to write a
> UDF which can take part in such a query. If so, what is passed to the
> UDF which would need an array of unspecified size
> the query would be something like
> select avg(uv), stdev(uv) from results where step = 1 ;
> where stdev is the udf
> marc

Look for a message from 12/29/2008 from Richard Wesley, subject "Re:
[firebird-support] Standard Deviation"

see you !

Alexandre Benson Smith
THOR Software e Comercial Ltda
Santo Andre - Sao Paulo - Brazil